Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 137, Issue 49, Pages 15406-15409Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.5b11150
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Funding
- U.S. Department of Energy [DE-AR0000177]
- Science Foundation of Ireland [13/RP/B2549]
- MOST (973 program) [2012CB821702]
- NSFC [21373115, 21331003, 91422302]
- 111 Project [B12015]
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Chiral variants of the prototypal metal organic framework MOF-5, A-CMOF-5 and Delta-CMOF-5, have been synthesized by preparing MOF-5 in the presence of L-proline or D-proline, respectively. CMOF-5 crystallizes in chiral space group P2(1)3 instead of Fm (3) over barm as exhibited by MOP-S. The phase purity of CMOF-5 was validated by single-crystal and powder X-ray diffraction, infrared spectroscopy, thermogravimetric analysis, N-2 adsorption, microanalysis, and solid-state vibrational circular dichroism. CMOF-5 undergoes a reversible single crystal-to-single crystal phase change to MOP-5 when immersed in a variety of organic solvents, although N-methyl-2-pyrrolidone (NMP) does not induce loss of chirality. Indeed, MOF-5 undergoes chiral induction when immersed in NMP, affording racemic CMOF-5.
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